docs: def contacts(self, uid=0, **kwargs):
          """
          Fetch user contacts by given group id.
          A useful synonym for "contacts/search" command with provided `groupId` parameter.
  
          :Example:
  
          lists = client.lists.contacts(1901010)
  
          :param int uid:   The unique id of the List. Required.
          :param int page:  Fetch specified results page. Default=1
          :param int limit: How many results on page. Default=10
          """
          contacts = Contacts(self.base_uri, self.auth)
          return self.get_subresource_instances(uid, instance=contacts,
                                                resource="contacts", params=kwargs)